current bounds on the number of colors: 0 -- 203 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:51 2012 Optimize a model with 23332 rows, 20732 columns and 89890 nonzeros Presolve removed 15 rows and 1515 columns Presolve time: 0.14s Presolved: 23317 rows, 19217 columns, 88375 nonzeros Variable types: 0 continuous, 19217 integer (19217 binary) Root relaxation: objective 0.000000e+00, 346 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (346 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 101 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 11653 rows, 10379 columns and 44500 nonzeros Presolve removed 15 rows and 750 columns Presolve time: 0.10s Presolved: 11638 rows, 9629 columns, 43750 nonzeros Variable types: 0 continuous, 9629 integer (9629 binary) Root relaxation: objective 0.000000e+00, 344 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (344 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 5928 rows, 5304 columns and 22250 nonzeros Presolve removed 15 rows and 375 columns Presolve time: 0.04s Presolved: 5913 rows, 4929 columns, 21875 nonzeros Variable types: 0 continuous, 4929 integer (4929 binary) Root relaxation: objective 0.000000e+00, 351 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (351 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 2951 rows, 2665 columns and 10680 nonzeros Presolve removed 15 rows and 180 columns Presolve time: 0.01s Presolved: 2936 rows, 2485 columns, 10500 nonzeros Variable types: 0 continuous, 2485 integer (2485 binary) Root relaxation: objective 0.000000e+00, 372 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (559 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 1577 rows, 1447 columns and 5340 nonzeros Presolve removed 15 rows and 90 columns Presolve time: 0.01s Presolved: 1562 rows, 1357 columns, 5250 nonzeros Variable types: 0 continuous, 1357 integer (1357 binary) Root relaxation: objective 0.000000e+00, 332 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (332 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 890 rows, 838 columns and 2670 nonzeros Presolve removed 15 rows and 45 columns Presolve time: 0.00s Presolved: 875 rows, 793 columns, 2625 nonzeros Variable types: 0 continuous, 793 integer (793 binary) Root relaxation: objective 0.000000e+00, 348 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (489 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 432 rows, 432 columns and 890 nonzeros Presolve removed 432 rows and 432 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:52 2012 Optimize a model with 661 rows, 635 columns and 1780 nonzeros Presolve removed 215 rows and 236 columns Presolve time: 0.00s Presolved: 446 rows, 399 columns, 1338 nonzeros Variable types: 0 continuous, 399 integer (399 binary) Root relaxation: objective 0.000000e+00, 205 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 176 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (665 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3